Alternating field demagnetization of rocks, and the problem of gyromagnetic remanence

摘要: Abstract Alternating field (a.f.) demagnetization has proved to be a very reliable technique for separating the magnetization components of rock samples. The method is subject errors caused by either imperfection or intrinsic properties rock. Recently, Stephenson [1,2] introduced term gyroremanent (GRM) disturbing remanent that can acquired magnetic material during tumbling stationary a.f. demagnetization. implications routine anisotropic samples seemed serious. Here, however, presented on how avoid effect GRM results obtained from